Cyril Eugene Pemberton (August 12, 1886, Los Angeles, California – May 16, 1975, Diamond Head, Hawaii) was an American economic entomologist known for his work with sugar cane pests. He was the chief entomologist for the Hawaiian Sugar Planters' Association during the interwar years and a leading researcher into biological control of insect pests in sugar cane. Pemberton was influential in the introduction of the voracious cane toad from the Caribbean into Hawaii and Australia, where it became one of that continent's worst invasive species.